Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11180632 | Unsaturated polyester resin system for cured in-place piping | Benjamin R. Hazen, David J. Herzog, Louis R. Ross | 2021-11-23 |
| 10131766 | Unsaturated polyester resin system for cured in-place piping | Benjamin R. Hazen, David J. Herzog, Louis R. Ross | 2018-11-20 |